/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2012 Markus Amend <markus@netsniff-ng.org>, Deutsche Flugsicherung GmbH
 * Subject to the GPL, version 2.
 *
 * IPv6 Fragmentation Header described in RFC2460
 */

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>    /* for ntohs() */

#include "proto.h"
#include "protos.h"
#include "dissector_eth.h"
#include "built_in.h"
#include "pkt_buff.h"

struct fragmhdr {
	uint8_t h_fragm_next_header;
	uint8_t h_fragm_reserved;
	uint16_t h_fragm_off_res_M;	
	uint32_t h_fragm_identification;
} __packed;

static void fragm(struct pkt_buff *pkt)
{
	uint16_t off_res_M;
	struct fragmhdr *fragm_ops;

	fragm_ops = (struct fragmhdr *) pkt_pull(pkt, sizeof(*fragm_ops));
	if (fragm_ops == NULL)
		return;

	off_res_M = ntohs(fragm_ops->h_fragm_off_res_M);
	
	tprintf("\t [ Fragment ");
	tprintf("NextHdr (%u), ", fragm_ops->h_fragm_next_header);
	tprintf("Reserved (%u), ", fragm_ops->h_fragm_reserved);
	tprintf("Offset (%u), ", off_res_M >> 3);
	tprintf("Res (%u), ", (off_res_M >> 1) & 0x3);
	tprintf("M flag (%u), ", off_res_M & 0x1);
	tprintf("Identification (%u)",
		ntohl(fragm_ops->h_fragm_identification));
	tprintf(" ]\n");

	pkt_set_proto(pkt, &eth_lay3, fragm_ops->h_fragm_next_header);
}

static void fragm_less(struct pkt_buff *pkt)
{
	uint16_t off_res_M;
	struct fragmhdr *fragm_ops;

	fragm_ops = (struct fragmhdr *) pkt_pull(pkt, sizeof(*fragm_ops));
	if (fragm_ops == NULL)
		return;

	off_res_M = ntohs(fragm_ops->h_fragm_off_res_M);

	tprintf(" FragmOffs %u", off_res_M >> 3);

	pkt_set_proto(pkt, &eth_lay3, fragm_ops->h_fragm_next_header);
}

struct protocol ipv6_fragm_ops = {
	.key = 0x2C,
	.print_full = fragm,
	.print_less = fragm_less,
};
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>devicetree</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='5891b4fe6387c3d86400ed4174d7c7389b784a97'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Mike Marshall &lt;hubcap@omnibond.com&gt;</td><td class='right'>2016-10-03 13:13:13 -0400</td></tr>
<tr><th>committer</th><td>Mike Marshall &lt;hubcap@omnibond.com&gt;</td><td class='right'>2016-10-03 13:13:13 -0400</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>5891b4fe6387c3d86400ed4174d7c7389b784a97</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/devicetree?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>20915bb2586b22567d408c753bba346f131fa759</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation/devicetree?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>Documentation/devicetree</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree?id=a21aae3bb15a1d08040bdcf5a73504c0da9f5080'>a21aae3bb15a1d08040bdcf5a73504c0da9f5080</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/devicetree?id=5891b4fe6387c3d86400ed4174d7c7389b784a97&amp;id2=a21aae3bb15a1d08040bdcf5a73504c0da9f5080'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree?id=b78b11985a36bfe768add17ffb70bbaf9d8d7627'>b78b11985a36bfe768add17ffb70bbaf9d8d7627</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/devicetree?id=5891b4fe6387c3d86400ed4174d7c7389b784a97&amp;id2=b78b11985a36bfe768add17ffb70bbaf9d8d7627'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'for-hubcap-v4.9-more' into for-next</div><div class='commit-msg'>orangefs: miscellaneous improvements and feature negotiation

Two OrangeFS updates:

 "Pull in an OrangeFS branch containing miscellaneous improvements.

  - clean up debugfs globals
  - remove dead code in sysfs
  - reorganize duplicated sysfs attribute structs
  - consolidate sysfs show and store functions
  - remove duplicated sysfs_ops structures
  - describe organization of sysfs
  - make devreq_mutex static
  - g_orangefs_stats -&gt; orangefs_stats for consistency
  - rename most remaining global variables"

 "Pull in an OrangeFS branch containing improvements which the userspace
  component and the kernel to negotiate mutually supported features."
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=5891b4fe6387c3d86400ed4174d7c7389b784a97'>Diffstat</a> (limited to 'Documentation/devicetree')</div><table summary='diffstat' class='diffstat'>